JP3039418U - Multi-layer lightweight concrete board - Google Patents

Abstract

(57) [Abstract] (Correction) [Problem] To make a layer of concrete or mortar 100% on the surface of a lightweight concrete plate, etc., which has heat insulation and soundproofing properties, and easily break it against external vandalism. We provide a multi-layer lightweight concrete board with a multi-layer structure so that it will not be damaged. SOLUTION: A styrofoam plate 7 provided with an integrated hole 1 of about 30 to 70 mm is placed in a bottom portion of a mold 4 at an arbitrary place,
Insert the hole 9 of the pillar 8 such as Styrofoam, which is made separately, into the bottle 6 and stand it up, and the concrete or mortar 2
A multi-layered lightweight concrete board that is made by pouring and is integrated with the Styrofoam board 7.

Description

[Detailed description of the invention] [Technical field to which the invention belongs]

 There are usually two types of construction methods: wet construction and dry construction. The wet method involves assembling the formwork at the construction site and injecting fresh concrete into the formwork, which required one to two weeks for the concrete to set. The dry method has come to be used to shorten the construction period. This is a method in which concrete members produced and dried at the Akajime factory are attached to steel frames. The present invention is a concrete board used in the dry method.

[Prior art]

 The concrete boards used in the dry method are mainly foam concrete boards, and other things are 100% mortar with cement / sand mixed with water, and 100% concrete with cement / sand / gravel mixed with water. Some of them were for the purpose of recycling, and sometimes glass shards or sintered materials of coal ash were mixed, but all had a single layer structure made of the same material.

[Problems to be solved by the device]

 Conventional foamed concrete boards are excellent in heat insulation, soundproofing, light weight and workability, and have been widely used as outer wall materials, ceiling materials and floor materials for factories, offices, stores, condominiums, etc. Of the features mentioned above, it was convenient to carefully examine the workability, but on the other hand, there was a weak point that was extremely susceptible to damage from the outside. That is, the foamed concrete plate can be easily cut with only a cutter knife for work, and when the rebar wire mesh is exposed, the clipper can be used to easily cut and open the hole. It was extremely dangerous to leave places and stores unattended at night. The present invention is not non-destructive because it does not retain heat insulation (heat retention), soundproofing, and lightness, but it also adds crime prevention.

[Means to solve the problem]

 Destruction of buildings is done by external work. Therefore, the problem can be solved by maintaining the strength of the surface of concrete plate etc. to the strength of conventional concrete or mortar 100%. In the present invention, as shown in FIG. 1, a styrofoam plate 7 having an integrated hole 1 of about 30 to 70 mm is placed at an arbitrary position on the bottom of a mold 4, and a column 8 for forming a bolt insertion hole is inserted. The concrete 6 or the styrofoam plate 7 is firmly integrated by the integrated hole 1 by pouring the concrete 6 or the mortar 2 from the upper part by pouring it up against the pin 6 protruding from the mold 4. It is characterized by using a single lightweight concrete board. When ready-mixed concrete 2, etc. enters the space created by the integrated hole 1 and the pillar 8 and dries, that part becomes the pillar 3 when the lightweight concrete plate is directly attached to the structure. This is because the surface height of the plate is constant. Then, if the pillar 8 is removed, the hole becomes a mounting bolt insertion hole for the lightweight concrete plate, and the pillar 8 can be made of Styrofoam, synthetic resin, metal or rubber.

[Embodiment]

 Conventional concrete boards have a so-called one-layer structure, whether they are foam concrete boards or concrete boards mixed with other materials. The present invention has 100% layer 2 of high strength concrete, mortar, etc. on the surface, and a styrofoam plate 7 made of a material that contains a large amount of air and has the effect of soundproofing and heat insulation, with the backside, and preliminarily at any place. The styrofoam 7 and the ready-mixed concrete 2, etc. are firmly integrated by the provided integrated hole. However, if there is no concrete pillar 3 with the integrated hole 1, the installation on the steel frame etc. Since the foamed concrete 7 is an elastic body, the tightening condition of bolts, etc., does not stabilize the surface height, resulting in extremely poor workability.

【Example】

 Although the light-weight concrete plate with a double-layer structure has been described above, it is also possible to form a triple-layer structure by sandwiching the foam concrete 7, and the concrete plate and the Styrofoam plate 7 are manufactured separately and later bonded. It should be noted that this is also possible with this invention and this case is also part of the present invention.

[Effect of the invention]

 Conventional foamed concrete boards have been used in large quantities in buildings because they have excellent heat insulation, sound insulation, and light weight, and also have good workability, but they have the drawback of being extremely weak against vandalism from the outside. It is. The present invention is extremely practical because it has the conventional heat insulation (heat retention), soundproofing, and lightness on the back surface, while the surface is kept high with concrete or mortar layer 2.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing a double structure such as a Styrofoam plate and a concrete plate.

[Fig. 2] -Schematic cross-sectional view of the column

FIG. 3 is a schematic top view of a Styrofoam plate placed in a mold.

[Explanation of symbols]

 1 …… Integrated hole 2 …… Green concrete or mortar 3 …… Mounting column 4 …… Form 5… Reinforcing bar 6 …… Pin 7 …… Styrofoam plate 8 …… Column 9 …… Standing hole

Claims (1)

[Utility model registration claims] 1. A styrofoam plate 7 provided with an integrated hole 1 of about 30 to 70 mm at an arbitrary place is put in the bottom of a mold 4,
Insert the holes 9 of the pillars 8 such as Styrofoam, which are made separately, into the pins 6 and stand them up, and prepare concrete or mortar 2
A multi-layered lightweight concrete board that is made by pouring and is integrated with the Styrofoam board 7.